OBD Guide
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C1289

Pressure Transducer Redundant / Secondary Input Circuit Failure

C1289 is an OBD-II diagnostic trouble code meaning: Pressure Transducer Redundant / Secondary Input Circuit Failure. Common causes: open or short circuit in wiring harness, secondary pressure sensor malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • The ESP/ABS warning light comes on
  • The stabilization system is disabled
  • Reduced braking performance on slippery surfaces

Causes

  • Open or short circuit in wiring harness
  • Secondary pressure sensor malfunction
  • Poor contact in connectors
  • Problems with the ESP control unit

How to Fix

  1. Check the integrity of the wiring harness to the sensor
  2. Check the resistance and voltage at the sensor
  3. Clean connector contacts
  4. If necessary, replace the pressure sensor
  5. Scan the system for other errors

Related codes

C1288C1290C1291

FAQ

What does the C1289 code mean?

C1289 is an OBD-II diagnostic trouble code that indicates: Pressure Transducer Redundant / Secondary Input Circuit Failure

What causes a C1289 error code?

The most common causes of C1289 include: Open or short circuit in wiring harness; Secondary pressure sensor malfunction; Poor contact in connectors; Problems with the ESP control unit.

How do I fix a C1289 diagnostic trouble code?

To fix C1289: Check the integrity of the wiring harness to the sensor. Check the resistance and voltage at the sensor. Clean connector contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1289?

Limited driving only, diagnose soon

How much does it cost to fix C1289?

The estimated repair cost for C1289 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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